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627271680 = 2113572917
BaseRepresentation
bin100101011000110…
…110100000000000
31121201022200222110
4211120312200000
52241040143210
6142124335320
721354502260
oct4530664000
91551280873
10627271680
112a2095552
121560a4540
139cc56a99
145d4457a0
153a108420
hex25636800

627271680 has 192 divisors, whose sum is σ = 2294248320. Its totient is φ = 143327232.

The previous prime is 627271637. The next prime is 627271691. The reversal of 627271680 is 86172726.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213582 + ... + 216498.

It is an arithmetic number, because the mean of its divisors is an integer number (11949210).

Almost surely, 2627271680 is an apocalyptic number.

627271680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 627271680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147124160).

627271680 is an abundant number, since it is smaller than the sum of its proper divisors (1666976640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

627271680 is a wasteful number, since it uses less digits than its factorization.

627271680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954 (or 2934 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 627271680 is about 25045.3923906175. The cubic root of 627271680 is about 856.0225923522.

The spelling of 627271680 in words is "six hundred twenty-seven million, two hundred seventy-one thousand, six hundred eighty".